Slime-concentrator.



W. P. lMISTER. SLIME GONGBNTRATUL APPLIOATION FILED APILSO, 1912.

mma, y Patented Sept. 3,1912.

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W. F. DEISTER. SLIMB GONCENTBATOR.

l v APPLIU'ATION'FILED APB.30, 1912. v1,037,212.

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Patented Sept; 3,1912.

W. F. DEISTBR. SLIMB GONUENTRATOR.

1,037212. APPLICATION FILED APILSO, 1912; Sept.

UNITED STATES yI)AJI`E1\I'I" OFFICE.

WILLIAM F. DEISTEB., OF FORT WAYNE, INDIANA.

SLIllIIE-CONCENTRATOR.

Specication of Letters Patent.

Patented sept. s, 1912.

Application filed April 30, 1912. Serial No. 694,289.

' To all whom it may concern.'

certain new and useful Improvements in showing a series of my Slime-(.loncentiators,` of which improvements the following is a specification. The invention described herein relates to certain improvements in the type of slime concentrators shown and described in Letters Patent No. 1,007 ,074, dated October 31st, -1911 and 1,010,350 dated November 28th, 1911.

The invention is hereinafter more fully described and claimed.

In the accompanying drawings forming a part of this specification Figure 1 is a side elevation of a slime concentrator embod inol m im rovements' Fier. Q is a sectional elevation on a plane indicated by the line II--II Fig. l; F ig. 3 is an elevation improved table in combination with means for controllingthe feed'of slime to the tables, and the iiow of water to the operating or controlling tank,

and for dressing the tables; Fig. 4 is an end elevation of the plant shown in Fig. 3; Fig.

5 is a view similar to Fig. 3 illustrating certain modifications; Fig. 6 is a sectional detail of one ofthe cushioning cylinders; Fig. 7 shows a transversesection and a top plan view of a slime feeding box.

As set forth in said Letters Patent No..

1,007,074, vthe several decks are pivot-ally supported about midway of their length on shafts 5 which are mounted on post-s or columns 6. The decks forming a table are connected so as to move in unison by straps 8 arranged adjacent tothe ends of the decks. Suitable means as boites- 12 having fan shaped directing trays 13`are arranged at one end of the table for feedingthe material onto the decks, which when in feed position incline downwardly at a suitable angle4 vfrom the trays. Pipes 17 having perforations or nozzles are arranged across the ends of the decks in suitable relation to -the u per surfaces thereof to effect a washing oil of deposits. These pipes are connected by flexible tubes 19 to a Water supply pipe 20 provided with a controlling valve 21, adapted to be opened and closed as the table moves to and from Washing position, as fully set forth in the patents referred to. In the form of apparatus described and shown in Patent No. 1,007,074 the table is shifted from feeding position to washing position and back to feeding position by a motor driven mechanism and consequently without any regard to the richness of the materials treated. -While such table shifting mechanism may be-employed in connecy tion with the apparatus set forth herein it is preferred t'o employ the construction shown in Letters Patent No. 1,010,350. ll'vhile any ofthe arrangements of cont-rolling or operating tanks 35 shown in said patent may be employed, the construction shown in Fig. 5 of the patent is preferred.

In this form of apparat-us the controlling or counter balancing tank' 35 is attached to one 'end of a rope 49 passing over guide pulleys the table preferably by means of a bridle 54 extending to the sides of the table adjacent to one end, as shown in Fig. 2.

As set forth in Patent No. 1,010,350 the pipe 20 may be connected direct to a supply pipe but better results are obtained where the supply of water is scant, by connecting the pipe 20 to a reservoir 48, in which a supply of water in excess of that required for a washing of the decks may be stored. This reservoir is divided into three compartment' as shown in Fig. 2, the supply pipe 52 bing arranged to discharge through a float cntrolled valve 53 into the middle compartment which preferably has a capacityl approximately equal to the combined capacities of the other The end compartments, which are'connected to the pipes 20 arranged on opposite sides of the table, have a capacity at least suiiicient to' effecta iiushing or washing of the decks of the table and areconnected by pipes '55 to the central compartment. The How of water through these pipes is controlled by valves 56 on stems 57 which extend up through brackets '58 on the controltwo compartments.

50 and having its opposite end connected to 59 on the stems when the tan position, and in order to shi the slime.

ling tank 35. f The brackets engirge shoulders 35 rises, its controlling liquid having been discharged, and the table moves to feed position as shown in Fig. 1, thereby raising the valves 56 and permitting the end compartments .of the reservoir to be filled while the slime is liowin over vthe decks. When the tank 35 is so c arged 'as to move down and shift the table to washing position, at which time the rvalves 21 are opened,` the valves 56 will ydropdown and close the ipes 55. This construction will prevent t e waste of the washin water in case due to the continuance o flow -of washing water' after the table begins its return v'movement to feed position, it will be understood that relative movements of the several parts are so adjusted that the end compartments are discharged onto the table, while the controllin tank is being discharged.

he flow of water into the controlling tank 35 is regulated to maintain the table in feed position for a certain definite time dependentfon the quantity? of values contained in The richer the slime in values the shorter should be the feed period. As stated in Patent N o. 1,010,350 the end of the table opposite thatonto which the 'slimeis fed is the-heavier,`so that :the table when free to do so will automaticall move to feed the table to washlng position the tank 35 and its contents should not only overbalanoe the excess of weight 'ofone end of the table, but also the welght of the accumulatiiygvalues to a predetermined-"point In the construction V,fshown'in said patent, the table will'not be vshifted until the weight of the tank and its j ..1 lock vhein L controlled-fby'fth' iiaaffsn' abi s. employed, the-cons' t'ructifon: vshown A'is V l adapted for that purpose. A block 60fis sev contents exceeds that of one end of the table and the values thereon. Hence if the How of water into the tank4 is regulated for a certain richness of slime, and there-should be an increase in values 1unnoticed by the attendant, the table would remain too long in feed posi# tion and values would escape from the table. In order to insure themovement of the table at the end of a; predetermined period, and

- regardless to aniextent of the accumulated 50. va I y controlling tankjinitsy elevate ues, ,provision is made, forV locking -the cured to the rope 49 in such position as to be engaged by a pivotally mounted dog 6'1 lwhen 'the tank is in its upper posit-ion. This is adapted to'be shifted when the Water in the tank has 'reached a predetermined level. A convenient means to this end consists of a. float 62 having a stem connected to the free end of a lever 63 to which is pivot-ally connected the end of. an arm 64 secured to the dog, as shown in Fig. 2. By properly ,"position, said. aten-1a .the

adjusting position of the iioat in thev slime to all of the decks formingy atable, ity

is fed into one side of a box 65 and flows under avballle 66 and over a second baie 67 intocompartments@ corresponding in number'to the decks employed. The slime iows from these compartments through the several troughs 12 over the distributing trays 13 and aprons 14 onto the decks. The aprons 14 have one end hinged to the trays 13 so that when the table is moved to washing position their free ends will drop to a position to discharge any slime or Water iowing from the troughs into a launder. The aprons rest at points adjacent to their free ends on pins carried by straps 68, which are pivotally connected to Weighted levers 69. The weights on the levers will not fully counter-balance the aprons so the free ends of the latter when free to-move will always drop. The levers are so shaped that the weights will become more eective as the aprons are raised to normal or operative position, as shown in F ig. 1. The aprons are raised to direct the slime onto the decks when the table is shifted to feed position by curved arms 70 on the table engaging rollers 71 on the straps. c

In order to prevent severe jars to the table when shifted .from one position to the other suitable cushioning devices are employed preferably arranged at the corners of the table. A convenient means for this purpose consists of cylinders 72 closed at one end' and pistons arranged therein. The cylinders are 'providedl .with suitable valves at their closed ends to control the escape of air as the pistons strike against the blocks 73. V.The outward'movements ofthe pistons are limited by pins 7 4 ou the pistons projecting intoslots in 4theWallsQorl the cylinders. A'

sition will `v'be pro'ge'ssivelyx accelerating one, the weighted end of the ntable moving down.. As will be understood, the sudden checking of such accelerated movement, es-

pecially when employing elastic cushioning devices, Will cause a rebound ofthe table, -thus interfering with the desirable regular and uniform flow of slime. In'order toretard suchmovement Without entirely checking it, a weight 75 is attached by a rope 76 or other iexible means to the feed end of the table. This rope is made of such a length that the Weight will not be lifted from the floor or other supportv until the table has nearly completed its movement.

a It is generally customary to employ a large number of these tables in a plant, and to arrange them in series, the tables of each series'being arranged either side by side, or end to end 'as desired. .lVhen thus arranged lit is preferred that'the tables of each series should operate automatically and in proper sequence.

While not limiting myself lto the mechanism shown it is believed that it is well adapted for the purpose.

Pipes or troughs 7( and 78 for the slime and water are arranged along vthe line of tables said pipes or troughs being provided with branches extending to valve mechan-isms 79 and 8O for each table. One of these valve mechanisms as 80 is provided'with an operating lever 81 extending into the path of movement of one or more blocks 82 secured to the endless sprocket chain'83 passing around sprocket Wheels 84. One of these sprocket wheels is driven at a speed dependent on the richness in -values of the slime to be treated. The other valve mechanism 79 has an operating lever or handle connected by a link to the lever S1, so that said valves will be shifted simultaneously. The 'valves as are normally open and are connected by pipes 85 to the slime boxes 65 while the val\ es 79 are normally closed and are connected by pipes 8G and 87 to the operating tank 35 and to the slime boxes (i5. The normal positions of the valves 79 and 8O are closed and open respectively, as sho n to the right in Fig. 3, so that slime will fi w o0 onto the decks of the table, which is at that time in feed position. The blocks 82 are as before stated so spaced on the sprocket chain and the latter is driven at such a speed that aiter the slime has iowed over the decks for a predetermined time, a block Will strikeand shift the lever 81 thereby closing the slime controlling valve 80 and opening the Water valve 79, thereby permitting water to iiow into the controlling tank 35 and the slime box 65. The pipes 86 and 87 are provided with regulating valves 88 and S9 kwhich are so set that the controlling tank will be filled by the time sufficient water has liowed into the slime box and thenceover the decks to effect the desired dressing. As the controlling tank moves down to shift the table to Washing position it'strikes a pivoteddog 90 on one arm of a bellcrank lever 91, which has its opposite arm con nected to the operating levers of the valves 79 and 80. By this movement ofthe tank the valves 7 9 and 8O are shifted to closed and open positions respectively, and the table moves to washing, position. By this e5 movementfof the table a gate 92 in the slime b ox is permitted to close, thus preventing tne slne from flowing into the distributing compartments a of the box, although it is free tolow into box on the opening of the valve 80. The gate 92 which when lowered forms a tight joint with the upper edge of the baifle''?, is carried by an arm 93 pivoted to the box or other suitable supportand extends forward so as to be supported and hold the gate in open position by the table when in feed position. On the return of l the table from Washing to feed position the gate is raised and there will be a flow of slime with and along the decks of the table until the valve 80 is again closed by a block on the endless chain.

It is'characteristic of the construction and combination shown in Fig. 3 that after the several adjustments have been made and the endless sprocket chain set in motion that the operation of the table will be entirely antomatic, the feeding, dressing and washing occurring4 in orderly sequence each operation continuing for definite periods for which adjustment had been made.

As shown in F ig. 5 the shifting of the valves 79 and 80 to stop the flow of water iand permit the renewal of the tio-w of slime, may be effected by the table as it moves to Washing positio In this construction an arm 94 is pivotally connected at one end to the table While its opposite end is slotted for the reception of a pin on a lever 95 for operating the valves. To the right in Fig. 5 the several parts are shown in the positions to which they have been shifted by a block on the endless chain, the table being in feed position, the slime valve closed'and the Water valve 79 opened, so that water is flowing into the slime box to dress the table, and also into the controlling tank. As soo-n as the latter is properly charged. it will move down and shift the table to Washing position. This movement of the table pulls down the arm 94 thereby shifting the lvalves 7 9 and 80 to closed and open positions. When the table is returned to feed position the arm 94: is raised thus bringing the pin on the lever 95 to the lower end of the slot on the arm 94, so that the valvescan be reversed at the proper time by the endless chain.

I claim herein as my invention:

1. In an apparatus for treat-ing slime, the combination of a pivotally mounted table normally inclined in the direction of flow of the slime and having a bias when shifted to return to-normalposition, and means adapted to oli'er a resistance sulicient to substantially retard the return movement.

2. ln an apparatus for treating slime, the combination of a table pivotally mounted. and normally inclined in the direction of flowof the slime'and-having a bias after being shifted to rcturnto normal position, und

means operative as the table approaches normal positlon` to oer a resistance suicient to substantially retard the return movement.

- 3. In an apparatus for treatin slime, the combination of a table pivota y mounted and normally inclined in thedirection of flow of the slime and having a bias when shifted to return `to normal position, a weight, a support for the weight, and a flexible connection from the weight to the feed vend of the table, such connection being longer than the distancebetween the weight and the table when in washing positio.

4. kIn an apparatus for treating slime, the combination of a table pivotally mounted and 4normally inclined in the direction of flow of the slime, incrementally varying means for shifting the table from normal position, an automatically acting lock preventing the operation ofthe table shifting means and mea-'ns `operating to release said lock at the desired intervals.

5. In an apparatus for treating shine, the combination of a pivotally mounted table normally inclined in the direction of flow of the slime, a counter balancin tank connected' to the'table, means for (greeting water into said tank, a lock for prevent-ing the downward movement Vof that "tank, and a oat arranged in said tank for releasing the lock.

6. In anI apparatus for treating slime, the combination of a pivotally mounted table normally inclined in the direction 'of flow Lof the slime, mea-ns for shifting the table from normal to washing position, means for directing water along the table in a direction opposite that of the flow of 'the slime, a. res'- ervoir having central and end. compartf ments, the end compartments being connected to the water directing means, means for supplying water to the central compartment, valved connections from the central to the end compartments controlled by the table shifting means. n

7. In an apparatus for treating slime, the

combination of series of oscillating superposed decks, a like series of slime distrib-4 uting trays, movable aprons adapted to bridge 'the spaces between the trays anddecks, and means operative on the movef ment of the respective decks to feedpositionI` to shift all the-apronsl to 'operativef grelationf A p trolledwmeans for'feeding slime to the tables,`

relative to the decks and trays.

8. In an apparatus for treatingfslimelillie' combination-of a pivotally mounted table consisting of a plurality of decks, distributing trays, aprons pivotally supported at one end, means carried by the tablefor raising the aprons to operative position, and apron counter-balancing means increasing in eilicienc'y as the aprons move toward operative position.

9. In `a plant'for treating slime, the combination of a series of oscillating concention, and a common means for controlling table operating means. 4 l

10. In a plant for treating slime, the com- .bination o a series ofos'cillating concentrating tables, means for feeding slime to one end of each of the tables, means for directing water onto thevother ends of the tables, meansfor shiftingthe' 'tables to and from feedin position, and a common means 'for controlling the feed of slime and dressing water, and the table operating means.

11. In a plant for treating slime, the combination o a series of oscillat' v `tables, means for feeding slime to the tables, means for feeding washing water onto the tailing discharge ends of the tables, means forfshifting the tables from feeding to washin position, and means for controlling the ow of j slime and Water on to the tables and the operation lof the table shifting means.

12. In a galant for treating slime, the combination o aaseries of tables normally inclined in the direction of flow of slime, means for -directing water along the tables .in a direction opposite that of the flow of the slime, incrementally varying means for oscillating the tables, and common means for controlling the tlow of slime and water, and also the variations in the table oscillating means. I

13. In a lantfor treating slime, the comy 100 fbination ofp a series of tables normally inclined in thedirection of the flow of slime and having a bias to return from washing to -normal position, valve controlled means forfeding slime to the tables, movable tanks connected to Athe tables and adapted when charged toishift them to Washing position, means controlled by the tables, for directing washing water along the same, valve` controlled means for directing Awater intothe tanks, and means for shiftingV the valves controlling the flow of slime to the tables and the water to the tanks. Y

14. In. an apparatus\ for treatin slime,

mallyy inclinedin the .direction of the flow `rof ,theslimeand having a biastp return from Washing to normallposition, valve con- Lmovable'tanks connected to'the'tables and adapted when charged to shift them' to washing position, means controlled yby the tables forv directing washing water along.

the same, valve controlled means for directing Water into the tanks, means for shifting" valves controlling the flow of slime and wa.-

ter one direction and means controlled. by

the tanks for shifting the valves in the opposite direction.

15. In 'an apparatusga, for treating slime, 13

the feed of slime and .the variations of the 70 the combination of a series of tab es' nor- 115 thecombination of a series of superimposed decks and' trays, and to open and close the 10 oscillating decks, a, like series of distributvalve controlhng the 110W of slime.

ing trays, movable aprons adapted t0 bridge In testimony WhereofI have hereunto set the spaces between the trays and the decks, my hand.

a sime box provided with means for directing slime onto the trays, a Valve controlling the iow of slime through the box, and meehanism operative on the -movements of the decks 1:0 shift the aprons relative to the WILLIAM F. DEI STER.

Witnesses:

ALICE A. TRILL, THOMAS B. JOYCE.

. Copies of this patent maybe obtainez for ve cents each, by addressing the Commissioner of Patents,

'Washingtom D. C. 

